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docs/develop: More reorganization.

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* There is now a 'busses' folder, and the extant USB/SDHCI/Bluetooth/etc.
   docs now live in it, instead of various other places.
 * kernel/ports is now kernel/arch, like it is in src/system.
   SPARC documentation is now in there, too.
 * VM files (these are rather outdated) are now in kernel/vm.
 * SCSI ASC info removed, this is easily available online and
   it doesn't seem to be very relevant.
This commit is contained in:
Augustin Cavalier
2019-03-30 18:00:46 -04:00
parent 454b04ca27
commit 18a8edbf0e
36 changed files with 0 additions and 728 deletions
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docs/develop/kernel/vm/vm_store_device
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static void device_destroy(struct vm_store *store)
Frees the space associated with this store
static off_t device_commit(struct vm_store *store, off_t size)
Sets this store's commited size to size.
static int device_has_page(struct vm_store *store, off_t offset)
Returns 0
static ssize_t device_read(struct vm_store *store, off_t offset, iovecs *vecs)
Returns unimplemented.
static ssize_t device_write(struct vm_store *store, off_t offset, iovecs *vecs)
Returns 0
static int device_fault(struct vm_store *store, struct vm_address_space *aspace, off_t offset)
Should be called when a page is not mapped in. Locks the translation map, Finds the region in the cache that contains this page and maps it in. Unlocks the cache.
vm_store *vm_store_create_device(addr base_addr)
Allocates memory for the vm_store structure, plus the data_store_device structure. Sets cache to null, and data to the device_store_data. Sets the device_store_data's base address to the base address passed in.